Wobbly screen

Dwarf said:

Do you have any problems with screen wobble on YOUR system? Is there any way that you could temporarily try your system at your friend's house (or try your friend's system at your house)?

negative: no wobbles here thanks but the other system is too far away, sorry - good suggestion but in this case impractical :-|

sheppitydawg said:

has your set up got a graphics card or are the graphics supplied by onboard chips on the MOBO?
wobbly graphics are some times caused by a poorly seated graphics card or dirty contacts or possibly a failing graphics card (if one is present)

when you upgraded did you upgrade the power supply?
generally power supplies just meet the minimum requirments for an off the shelf PC adding higher spec components will draw more power and this could potentially be the cause if the problem is when the system is under duress.

hm, the new system was installed by a pro technician, it wasn't an upgrade of an old system, so i wouldn't have thought insufficient power supply would have been an issue. I think it's a Dell Inspiron 545 if this helps? I haven't heard that this model has a graphics issue but i could be wrong.

thanks

R

Military/Civ microwave transmission interference

How old is house wiring?
Dodgy house wiring/earth-grounding?

Have they tried the system in another room? Then ask a neighbour, help to plug in and test.

giving this some more thought i think it is highly unlikely that other than power fluctuations that anything would create this problem .
if the monitor was a CRT monitor then electro magneitc fields etc would affect the the tube and create fluctuations in the signal/screen... LCD /Led sceens should ot really be affected (when did you see interference on a flat panel other than the the actual signal )

it might be worth updating the graphics drivers and or playing with the refresh rates ..or trying an old CRT monitor if you have one to see if you have the same problem.
have you changed the lead? sometimes the simplest options are the least considered imo.

BTW i misunderstood your first post beleiving that the new PC was an upgrade rather than a new unit.

so when you say it was installed by a pro technician you mean you had it delivered and set up?
i asume you bought the product new from DELL?

if so i would (if applicable ) contact DELL under warranty ... set up will not account for faulty hardware ..

i would still

i have now looked at the spec of your PC and if you have the ATI Mobility RADEON HD 3450 card in your system there are some posted jitter problems with the ATI drivers and windows 7.
AMD Support Search

there must be a graphics card sticky on this site to refer too if you have never done this before prior to updating.

many thanks to all for helpful suggestions. think i have a large segment of this jigsaw practically at my left elbow. when the new Dell computer arrived i took the old one off their hands. besides the trembling graphics it had a suspect o/s on it which i removed and replaced with the genuine article. since removing this system from the household in question the screen hasn't trembled once, and that includes when it still had the old o/s on board. so it's something in the household, the central heating turning on and off, or something like that? because this issue is affecting two totally different systems in exactly the same way it must be local to the gaff. i reckon the surge protector will fix it, if this is something which also regulates power flow?

What sort of light bulbs in the room?

I read yonks ago (whilst looking for a cause of another peeps problem) that certain brands of eco-bulbs fekk up PC/TV/Screens and are even known to be able to switch TV's/laptops/PVRs on and off too!

The mulder/scully 'ghost' effect!

Another one from my 'X' files!