Bold fonts on certain websites - font smoothing woes

Hi,

I purchased a 13" MacBook Pro last week and I'm having a bit of an issue regarding font smoothing/font rendering on certain websites. I'll do my best to try and explain...

When loading certain websites (mainly vBulletin-based forums, but this happens on quite a few other sites too) the text looks bold and ugly, the same sites look fine on my friends 15" MacBook Pro and 24" iMac - as an example, his looks like the sample on the left and mine looks like the sample on the right:

http://i47.tinypic.com/e7b8ro.jpg (not my screenshot, but my issue is exactly the same)

I've done some searching and other people have fixed this problem using the following command:

defaults -currentHost write -globalDomain AppleFontSmoothing -int 3

This basically changes the hidden font smoothing settings which were removed in 10.6, in 10.5 you had the following options to choose from:

Automatic - Best for Main Display
Standard - Best for CRT (1)
Light (2)
Medium - Best for Flat Panel (3)
Strong (4)

If I set the command above to 1, 2 or 3 my fonts don't change at all and still look bold and horrible. If I set the command to "4" (Strong), do the usual log out and back in, then I get the correct looking fonts on the websites I had issues with BUT my system fonts and other websites now have a very soft, almost out of focus font, probably due to this being the Strong smoothing setting. Likewise if I set the command to "0" (turning font smoothing off) I get the correct looking fonts on the problematic websites but again system fonts look odd, not nice and smooth (due to font smoothing being turned off)

Does anyone have a suggestion as to what I can try next please? Could this be down to the resolution/DPI of the 13" MBP's screen?

Thanks,

Verta