Scripting issues?

Hey, so I was reading through the TF2 wiki and ran across scripting. I thought to myself, cool, I'll try some of these out! Grabbed a multi-purpose soldier one and an autoreload one. At first everything worked great, but recently not so much. As best I can tell, some servers allow scripts/macros/binds etc, some don't. That's fine, I understand, not an issue. If nobody else is playing with scripts, I don't need to either.

Odd thing is, it seems that when I play on servers that don't allow scripts (as evidenced by autoreload not working), attempting to load my soldier script actually crashes my client. It works fine if I play it on local or on different servers. My autoreload script, which simply fails, causes no crash, so I'm thinking it might be based on what commands are used. Anybody have similar experience/knowledge?