messed up browser?!

Hi yesterday I didn't have much troubles with my browsing and I didn't detect anything wrong besides Firefox remaining in my local language so I guess my concentration dropped a bit but today, I will resume.I believe who ever was doing all this got even more tired than me or some of your advice helped (for which I'm great full) never the less my new scans can't find the OpaServ virus or whatever it is
I can't download, for now, Windows Offline Defender since I must do that from another computer and I don't have that possibility, so that must wait.
Other then that I'm waiting on Wanchoo's explanation which will help me since I got a similar reaction from Kaspersky official forum and I'm asking cause I believe this is part of all of this virus-hacker-whatever attack so PLEASE...
 

My Computer

OS
Microsoft Windows 7 Ultimate 32-bit 7601 Multiprocessor Free Service Pack 1
CPU
Pentium(R) Dual-Core CPU E5300 @ 2.60GHz
Motherboard
ASRock G41M-S
Memory
3.00 GB
Graphics Card(s)
ATI Radeon HD 4300/4500 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Monitor(s) Displays
philips 23ie HD
Screen Resolution
1920 x 1080 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
(1) WDC WD3200AAJS-00L7A0 ATA Device (2) WDC WD5000AADS-00S9B0 ATA Device
I am not clear what if any explanation you need from me now. Please elaborate a little.
 

My Computer

Computer Manufacturer/Model Number
Custom Built
OS
Windows 7 Pro with SP1 32bit
Motherboard
Intel D845GVS1 X86-based PC
Memory
2 gigs of RAM
Graphics Card(s)
Intel(R) 82845G/GL/GE/PE/GV Graphics Controller
Sound Card
Realtek AC'97 Audio
Monitor(s) Displays
Samsung SyncMaster 931BF Black 19" LCD Monitor
Screen Resolution
1280X960
Hard Drives
1. SAMSUNG SP0822N ATA Device ~ 80 GigaBytes

2. Seagate FreeAgent Go USB Device ~ 500 GigaBytes
Keyboard
COMPAQ Standard PS/2 Keyboard
Mouse
iBall Laser Precise Speedster
Internet Speed
4 mb/sec
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