Is my graphic card broken?

Hi!
Just returned to my computer (iMac G5), woke it up and found that menues and transparent areas in the OS looked weird:
Screenshot: http://www.beakid.se/bugg1.png
Tried to switch to 256 colors: http://www.beakid.se/256colors.png
Have tried to restart, uninstall OS-skin-enhancers etc but it doesn't change.
HOWEVER, the problem was solved when I booted in "safe mode". The 256 colors mode still looked weird, but it was all good in Millions colors.
Anyone who can help me out?

Hello everyone
I have something quite similar with mine, well, even more frightening than beakid's screenshots actually.
So I ran the Apple Hardware Test and I got the following error code:
2NVD/3/4: 2103
...sounds like my video card is in trouble...
but anyone knows what that means exactly? is it actualli broken or is there just something wrong with its memory?
If it
falls into THIS range of serial numbers, you are
actually covered for two years on video and power
supply issues.
Unfortunately my iMac's serial number doesn't belong to said range, and Apple doesn't even seem to have ever heard of it. So I can't even use the chat-with-a-support-agent-and-get-an-answer-at-once thing.
iMac G5 Mac OS X (10.3.9) AppleHardwareTest version 2.2.1
iMac G5 Mac OS X (10.3.9)

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https://drive.google.com/?utm_source=en&utm_medium=button&utm_campaign=web&utm_c ontent=gotodrive&utm_term=carousel&usp=ad_search#folders/0B5qR4GFGRbsnOFBsNVNDcn ViVG8

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