I was up last night until 3:30 tring to figure out what could be causing the problem. Around 11:30 I decided to downloaded a fresh copy of MC11 again. I ripped a cd (.ape) using EAC and MC11. The MC11 copy played fine for the first few times, but around the 10th playback it could no longer playback gapless. The imported EAC version suffered the same problem. I tried the 11th playback using foobar2000 and had the same problem. Next, I ripped a cd using WMA Lossless in MC11 and WMP10. The MC11 version crashed randomly with a Buffer Run Error during playback. The WMP10 imported version played fine with no gaps. For this test I set the output to DirectSound and source bitdepth.
I also ran the same test using my soundcards (Digital Audio Labs CardDeluxe) latest ASIO drivers. Changing the bitdepth to 24/96 offered the best sound quality for .ape playback, but the MC11 and EAC rip sufferered from gaps between the tracks. MC11 continued to crash with it's own rip of WMA Lossless, but the WMP10 version continued to play fine. Wave Out also repeated the same results.
Any ideas?