AVex convert problem - AVex used to work without any problem, suddenly it stops working

First check if your system is clean.

The problem is probably caused by installing too many incompatible codecs on your system. Please use the GSpot Codec Information Tool to detect any incompatible codecs, such as Ligos audio and video codec, MontiVision Deinterlace filter, etc. GSpot Codec Information is included in K-Lite Codec Pack. Uninstall these codecs might solve your problem. To make it work better, have your system rebuilt and have only the necessary standard codecs installed, among which are: MpegDecoder012, AC3Filter, Cyberlink Audio and Video Decoders (version 6+), InterVideo Audio and Video Decoders(version 6+), Nero Audio and Video Decoders (version 6.18). And install the DirectX 9.0c (details click here), if possible.

Then open AVex program, go to menu "Options", click "DVD Settings", modify the DVD Setting as any ONE of the following Combination, but don't mix them up, e.g., don't mix Cyberlink Audio Decoder with Nero Video Decoder:

* DVD Navigator: Microsoft DVD Navigator
Audio Decoder: AC3Filter
Video Decoder: MpegDecoder012
* DVD Navigator: Microsoft DVD Navigator
Audio Decoder: Cyberlink Audio
Video Decoder: Cyberlink Video Decoder
* DVD Navigator: Microsoft DVD Navigator
Audio Decoder: Intervideo Audio Decoder
Video Decoder: Intervideo Video Decoder
* DVD Navigator: Microsoft DVD Navigator
Audio Decoder: Nero Audio Decoder
Video Decoder: Nero Video Decoder

Please contact support@avex-dvd.com, for further assistance, if none of the above solutions work for you. Please don't forget to add the "C:\temp\avex.elog" as an attachment when you write to the AVex support.