Whenever I try to enable FSAA in the MW4 config tool or the more usual route in my Vid card applet, it don't seem to do anything now in Mercs? This has only happened since I installed the MekTek pack, it was fine before. Both methods described above used to work prior to the pack, although using the cards applet gave me better FSAA features and quality, that's the one I normally use. I'm now in a world of jaggies and shimmering textures when I play the game. Has this happened to anyone else? Does anyone know of a solution? All my other games work fine with FSAA, just not Mercs since the MekTek pack or is this just a coincidence?

It must have been a coincidence I reckon. I've just unistalled and reinstalled and all is well again in FSAA land now... weird?

Weird, I was about to post that I hadn't had any problems with FSAA - I run my game with 6xFSAA (selected in the video card controls - game set to no AA) and it looks smooth as ever...