X5 stuck 'Loading wave data...'

[skis04]

Had this problem in X4 as well. When I activate the sound mixer the clips are all stuck on 'Loading wave data...' I leave the computer alone for hours and there's no change in status and X4/5 has become unresponsive. The problem is only occurring with MPEG's that were captured using X4. AVI's are working without a problem. What's going on? Anyone have an idea? A bit about the system:

Windows 7 SP1
Intel Core Duo2, 266GHz
4GB RAM
X5 installed on C: with 300GB available
Files on G: with 400GB available
No other programs running
HD MPEG's ~10GB in size,
5 files in project
~50 clips

Any help appreciated!

[teknisyan]

This can be a codec issue and you may want to update or install the commonly used codecs on your computer.

Here are some of the codecs that you may want to install.
RealPlayer: http://www.real.com/
DivX: http://www.divx.com/en/software/divx-plus/codec-pack
XviD: http://downloads.xvid.org/downloads/xvidcore-1.3.2.zip
Windows Media Player: http://windows.microsoft.com/en-US/wind ... dia-player or just download the Windows Encoder at http://www.microsoft.com/expression/pro ... rview.aspx
QuickTime: http://www.apple.com/quicktime/download/
Direct X: http://on-msn.com/aLrk0j (WinXP)
Direct X: http://www.microsoft.com/Windows/window ... tx-11.aspx