Entering (and losing) programs on HP 48

[calculon]

Thanks for the suggestions. At least I'll have something to show for my efforts! It's odd that the calculator doesn't let you enter your entire program, warts and all, leaving error detection until the program is run. At least then you'd have the chance of single-stepping through it to find where the problem lies. As it is, I get an error message with the cursor on a delimiter (I've checked and double-checked to make sure they're all in order), which is no help at all.