strange m-audio soundcard glitches, Cross 1.5

hey guys, been using Cross for a few weeks now loving the improved engine over DVS...
appear to be getting glitches/pops coming out on my mixes though, im running on windows 7, maudio delta 44 for mixing and a delta audiophile 2496 for recording, im pretty 99% sure its not coming out when i mix but only on the recording.
seems to only be when loading in new tracks and sometimes on timecode movement (ie deck 1 is playing a track, cueuing deck 2 in headphones, a click could still occur on the ist deck) its not constant glitching but is quite annoying when it comes through.
any help would be much appreciated, have tried lowering the memory buffer in Cross, tried running in various modes as admin etc, tried going right up to 768 latencyt on the soundcard buffer. another strange thing is since getting Cross ive never been able to run it on anything other then 48000 even changing the rate out of Cross then loading Cross it always switches to 48?
2gb ram
quad core 2 Q6600 2.4ghz
windows 7
sorry if ive left anything out, cheers
appear to be getting glitches/pops coming out on my mixes though, im running on windows 7, maudio delta 44 for mixing and a delta audiophile 2496 for recording, im pretty 99% sure its not coming out when i mix but only on the recording.
seems to only be when loading in new tracks and sometimes on timecode movement (ie deck 1 is playing a track, cueuing deck 2 in headphones, a click could still occur on the ist deck) its not constant glitching but is quite annoying when it comes through.
any help would be much appreciated, have tried lowering the memory buffer in Cross, tried running in various modes as admin etc, tried going right up to 768 latencyt on the soundcard buffer. another strange thing is since getting Cross ive never been able to run it on anything other then 48000 even changing the rate out of Cross then loading Cross it always switches to 48?
2gb ram
quad core 2 Q6600 2.4ghz
windows 7
sorry if ive left anything out, cheers