The system cannot find the drive specified

[fishhead]

Hi all,
I am using textpad in conjunction with MASM615 for assembly language programming. Both are installed in C drive in program files. I have the tool comand Build 16-bit masm, debug 16-bit masm, build 32-bit masm, & run masm all configured properly. The text highlighter is also working properly. when I try to build or run the error message that I recieve is:
The system cannot find the drive specified.
Tool completed with exit code 1
I can't figure it out. If anyone has any idea how to fix please advise.
Thanks in advance