Permit me to provide some more info... I figure the more I tell you guys, the more you can help me. I just took a fifteen-minute drive and went through some of the built-in climate control diagnostic readout stuff.

First off, reading #5 (evaporator temp) never got lower than 17, and hovered around 20 most of the time. I think that's degrees Celsius -- so my evaporator is only about 65-68 degrees? No wonder my car won't cool off enough! Reading #6 (ECT sensor?) was reading out 84. I didn't write down more of the codes, but would be glad to if it would help tomorrow. Outside temperature was indicated at 79 degrees at 10 p.m. while I did the test.

Also, when I pull out the fault codes, I'm getting a B1234. I think that has something to do with the sun sensor.

The following page was some help in pulling my own diagnostics, in case other newbies run across this thread later:
http://continentalimports.com/ser_ic40142.html

So, a shot of refrigerant is in order? Other tips / ideas? Thanks again!

Cheers, John