Hi Bruno,
Here's my graphics card info.
My card can support 1k x 1k RGB images; it fails on 2k x 2k images, as I noted in an earlier post to this topic.
ATI Radeon 9200:
Chipset Model: ATY,RV280
Type: Display
Bus: AGP
VRAM (Total): 32 MB
Vendor: ATI (0x1002)
Device ID: 0x5962
Revision ID: 0x0001
ROM Revision: 113-xxxxx-102
Kevin