Fixes for the vbmlib.bin file The original program was written for monitors with NTSC timing, which lead to problems in Europe, where monitors with PAL timing are used. Furthermore there were some problems on composite monitors, because display data was sent during the VSync pulse. The following fixed files are supplied, use them instead of the original vbmlib.bin file: vbmlib.ntsc.bin The composite monitor issue was fixed. This has been done by filling the whole 64k VDC RAM with $00. Now the program runs well on my PAL 1702, which only produced a rolling picture before. vbmlib.pal.bin Same fix, and the timing has been adjusted to be more PAL like. The horizontal frequency was not changed, but the vertical frequency adjusted to 25Hz. This was done by raising the number of scanlines to 629. The address of the odd frame in memory also had to be changed. This change enabled my Hercules monitor to show a stable picture, and the 1084 monitor, which has a 50 and 60Hz mode, switches over to 50Hz mode and draws more scanlines onto the screen. Nicolas Welte welte@chemie.uni-konstanz.de