The only prerequisite to take the on-line class: "44 Thousand Uses For Duct Tape".
Out foul beast. There are only 22,000 uses for duct tape. 11,000 of the remainder are reserved for baling twine. Half of the balance is used for WD40. The final few thousand hold a special place in my heart, as they use of combination of ALL THREE magical general purpose problem solvers.
It is a well know fact that anything in the entire Universe (including the Universe itself) can be fixed by use of duct tape, WD40 and/or baling twine. Duct tape is, of course, the only known fix for a piece of broken duct tape; however, it should be noted that only certifiable 'professionals' should attempt to carry out such an intricate repair.
On a more serious note, I think I should return to the problem at hand and mention that broken windows should be repaired with duct tape, but broken computer software probably requires special skills (dare I say it?) beyond the realms of duct tape, WD40 and baling twine. One possible cure could be gaffa tape to stick to the computer screen in an attempt to make the thin line bigger - should the repair attempt fail, the gaffa tape can be removed leaving very little sticky residue to clean up.
Many apologies for the interruption; we now return you to your regular programming.