GdipLoadImageFromFile failed : 3 error

[bavaria35]

Testing Alien Quadrilogy (ILVU) dvd1 Pal

rb 1.00 rc1 (fresh install)
cce 2.67.00.27
dgdecode.dll (the one added in the rebuilder.zip)
Changes: remove 5.1 audio only (to keep dts) removed audiodub avs option

Prepare runs fine.
Error occurred when starting to encode the first cell.

Rebuilder.ini :

[Options]
SkinVersion=7
Skin=Rockas Original
HC_Quality=1
DVD_Label=ALIE1
DVD_Name=ALIE1.ISO
EncoderMinimized=1
CCE=1
AudioDub=0
HalfD1=00
Convert_16_9=00
DisableInterlace=00
[Paths]
CCENEW=C:\Program Files\Cinema Craft Encoder SP v2.67.00.27\cctsp.exe
MPEG2DEC=C:\Program Files\Rebuilder\DGDecode.dll
Source=C:\BACKXPMAIN\ALIE1\
Working=C:\BACKXPMAIN\WORK\
Output=C:\BACKXPMAIN\WORK\
[CCEOptions]
VBR_bias=25
Quality_prec=16
eclPasses=6
[Audio]
Selected=01
[Subpictures]
Selected=111111111

Any suggestions??? Thanks in advance