All: This problem has been beating me up all day so I wanted to throw it out to the group for ideas. In my 8800b, I have a Vector Graphics Bit Streamer serial board (8251 chip) set for standard ports (0/1 parallel, 2 serial data, 3 serial command/status). I modified the Turnkey Monitor to use the ports based on the VG instruction manual. The manual outlines initialization and moving characters in and out. Works perfectly. Now, I want to get standard Microsoft BASIC paper tapes (8k or Extended 4.0) working with this board. However, when I look at the sense switch options, none fit using the Bit Streamer -- the parallel ports are swapped with the serial ports in the order, and the data port comes before the status port (all basically the opposite of what BASIC expects). I also can't seem to find a toggle loader that works properly. So, I decided to pull out a Solid State Music 2p/2s board and try to configure it to work with BASIC. I spent the better part of a day trying different options with no success. Based on some basic testing of the board I believe it works. Has anyone configured an SSM board to successfully work with Microsoft Tape BASIC? What loader did you use? How about getting a standard VG Bit Streamer working with standard MS Basic? As an aside, I'm using Procomm from DOS on an old PC. Can one use the "ASCII Upload" option to move the tape image over the line or should I do something from DOS like "copy 8kbas40.tap com1:"? Thanks. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/