JEFF>>> At a swap meet today, I picked up 9 VIC-20 cartridges as well as one JEFF>>> program tape. Among the VIC cartridges was a 16k RAM expansion and one called JEFF>> 'Programmers Aid Cartridge' (VIC-1212). Jeff, there is a 28 page manual that comes with that cart. Following quote might help get you started: Quote: After the VIC is inserted (the cartridge) type the following: SYS 28681 (and hit the return key) The VIC will display the following message: PROGRAMMER'S AID READY All of the AID commands are now included in your VIC's internal instruction set and may be used like any BASIC commands END QUOTE The cartridge adds 20 apecial editing commands to the VIC's instruction vocabulary and gives you an easy method for re-defining the VIC's programmable function keys. the commands are: AUTO FIND OFF CHANGE HELP PROG DELETE KEY RENUMBER DUMP KILL STEP EDIT MERGE TRACE CTRL A, E, L, N, Q, U also provide additional editing functions. Function keys are assigned various jobs; ie F1 is LIST, F3 is RUN, F5 is GOTO, F7 is INPUT Of course, there is more detail as to useage and some specific examples contained in the manual. Was just trying the thing out... hoping that the HELP command would provide some syntax examples for you. Unfortunately it doesn't. The HELP command will pinpoint a syntax error in your program if you use it directly after receiving an error message. Photocopying this short manual would cost me about $5. If you'll send me the money, I'll do it for you. JEFF>>> Also, can anyone explain the reasoning behind the different color schemes JEFF>> >for the labels? I have both. Don't know why it is so. Manufacturer's perrogative? -Ron Mitchell