Flickering issues...

I noticed that after I upgraded to Xtreme 5 I was having some serious flickering issues. I adjusted my screen resolution and still I was having issues.

I create some pretty large images (40"x32"), but never had issues before. Also Xara runs really slow sometimes.

Here's my PC info:

Microsoft XP - Home Edition
Version: 2002
Service Pack 3

HP Pavillion
Intel(R) Pentium(R) 4 CPU 3.4GHz w/HTT
3.40GHz, 2.00GB of Ram
1.0GB PC3200 DDR SDRAM Memory
250GB 7200RPM Serial ATA Hard Drive
256GB Memory


Radeon X700 Series

I am wondering if I should upgrade my graphics card and also my monitor (it's just 19" and I have read there are some issues with it - HP discontinued them).

Any suggestions...?

Thanks