Thanks, Mark--I'll check into that. VB has no Stringbuilder variable type but I will check to see if it might have an equivalent.

Dave

Thank you for your reply, Ziko. I have discovered the reason for my trouble. It seems to be a very simple and emrarassing one of not having a match in the variable types. I thought I had checked and rechecked that but sure enough, after leaving the code and coming back to it I noticed a mismatch. Af...

I am a fairly new programmer in Visual Basic 2005 and totally new to communicating with Pico Technology Data Loggers via Visual Basic. I have a new Pico Technologies ADC-24 Data Logger that I wish to program an interface for. I downloaded and ran Pico Technologies HRDL program for Visual Basic. The ...