Windows 7: V.strange Digg/Kone Mouse problem

Hi Folks.

I've got a very odd problem.
I have a Roccat Kone mouse which I am delighted with. However, since installing Windows 7 (lots of builds over the last 6 months but now alleged RTM),
I've noticed that my mouse pointer flickers in and out of existence when browsing Digg.com.
This is so bad that I cannot use the site.
I thought it was just in Windows 7 but now when I boot into Vista x64 I get the same problem with Digg.
I'm not sure how long this problem has been there. I only noticed it with the latest RTM leak and then I checked Vista, which I hadn't been using much, and it's happening there too.
I contacted Roccat and they say the usual stuff about not supporting Windows 7 yet and then go on to say they have no idea why it's happening in Vista and with (so far) just one website.
Anybody got any ideas?

Cheers, John

deja vu?

i'm sure i've heard this one before...

try this, or this (if you haven't already )- good luck!

Thanks very much for the reply Mickey,

Yes, I had already seen the other two threads and have tried what is suggested.
These seem to be about people who couldn't get the mouse to work at all whereas it's working perfectly in games and in general just not in Digg.com.
There is a suggestion on the other thread that this is not a Windows 7 problem but a x64 problem.
It certainly is at the moment but this mouse worked perfectly on Digg in Vista x64 for several months before Windows 7 came along and on the RC and various builds leaked since.
In fact the problem seems to have started in both OSs as soon as I installed the RTM leak.

I'm mystified, John