Missing video ram

I have a 1ghz Titanium G4 with the ATI 9000 mobility 64mb video ram. OSx 10.3.9 1gig ram
Recently I have discovered that the system profiler lists my total video ram as 32 mb. My overall game performance seems diminished when playing graphically intense games such as Unreal Tournament 2004.
This discovery seems to have occurred around the same time that I had a battery charging problem which I have since fixed. My system has also been suffering increasing freezes upon wake from sleep or screen saver.
I recently perfomed an archive/installation of my OS hoping that might restore some corrupted files in the system, but no luck.
Has anyone else seen this problem or know of a cause/solution?
Thanks.

Hi, pioche. A 1GHz Tibook certainly ought to have 64MB of VRAM, and if it doesn't, the only reasonable conclusion is that the missing half has failed. It's all soldered onto the main logic board, so the remedy is to replace the board. Of course another alternative might be to avoid asking too much of the remaining 32MB, and thereby save quite a bit of money. That's what I'd do if there weren't any other signs that might point to a larger failure of the LB, but it sounds as though yours may be on its way out. Have you run the Hardware Test CD that came with the Powerbook?

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