[slime-devel] error in process filter

I am running slime from CVS with sbcl 1.0. It loads fine, but after entering something (a "require") at the REPL, I get the following error message: error in process filter: sldb-frame-number-at-point : No frame at point error in process filter: No frame at point Could this be a little bug in the latest cvs of slime (I was running fine until last night), or have I misconfigured something? -Hans