gnome-terminal cursor bug in Jove editor

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http://forums.fedoraforum.org – Sorry, I looked hard for anything related to this problem; I didn't want to open a new thread, but... I use an ancient text editor - Jove - that I maintain and update myself. It has worked fine on Fedora 6, 7 and 8 under gnome-terminal (known to the Jove editor as xterm). I just installed Fedora 12. When moving around a file being edited, the cursor often 'replicates' itself into a series of blocks (or underlines, depending on the cursor type setting) that seem to correspond to tab-stops. I initially thought it was stumbling on TABs, but it does this weirdness on long strings of bl (HowTos)