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Green Boot Screen w/dotted horizontal lines

Last response: in Graphics & Displays
April 11, 2010 6:23:40 PM

Hi. I woke up this morning and found my 22" Asus Widescreen monitor showing my Windows 7 screen with small dotted lines across the screen (if it matters, the dotted lines appear reddish on a white background and greenish on a blue background. They sort of disappear on a light green or light pink background). Initially I thought this must be a Windows 7 issue, so I checked my video card for updates and installed the latest. I also changed a few display settings (to more basic ones) with no effect. I also checked Event Viewer for anything that looked to be related (don't see anything). However, upon rebooting I notice that the usual black boot screen is now green, and the lines appear during booting.

Other than the weirdness of the lines, I don't have any other video problems. The lines are not intermittent. There are no vertical lines. Everything else appears normal (even the colors on the screen while in Windows).

I had seen a few similar posts on laptop forums that mentioned turning off legacy USB bios settings -- no effect. I've checked the DVI connections to my card and the monitor and they're fine.

I have not reinserted the card yet. I am hoping that this issue looks familiar to someone out there -- and that perhaps there is some bios update or other fix available. I checked the ATI site and don't see anything mentioned like this. I don't know much about graphics cards -- do they have a bios you can flash? (I didn't see anything about that on the ATI site...)

I'd appreciate any advice. Here are my main specs:

Thanks. mcaren

Windows 7 Ult. 64 bit (updated regularly)
Gigabyte GA-MA790XT-UD4P motherboard
AMD II x4 620 Processor (2600 Mhz, 4 core)
4 GB ram (G.SKILL 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
ATI Radeon HD 4600
Driver ver 8.712.0.0 dated 3/2/2010,
set to 1920x1080 x 60 hertz (recommended setting)
a b U Graphics card
April 11, 2010 6:52:12 PM

I think your best option is a OS reinstall. If it still does that after you format, it's probably a hardware issue. You may want to reset your BIOS to the Default settings or reset the CMOS jumper pins on the motherboard. However, if you don't have any other problems, I wouldn't worry about it yet.
April 11, 2010 8:22:52 PM

Thank you multiscreenz for your reply. Would an OS issue show up in the initial boot screen? (it shows up long before the Windows screen shows up...). mcaren