A display problem?
You have a display problem: the program does not correctly display cards, bids, tooltips, the game table, scores, statistics, etc.
Read the page: Display Troubleshooting
An interface problem?
You have an interface problem: you are unable to do what you want (bid, play a card, declare a meld, review the bidding, the card play, use the mouse, the keyboard). Or the program does not work as you hoped (timing, sounds, counting points, conduct of the game, automatisms, crash, etc.).
Read the page: Interface Troubleshooting
A problem with rules?
You have a problem with rules: you disagree with the rules of the game (dealing, bidding, card play, melding, ruffing, doubling, scoring, end of game, etc.). Or you don't understand the strategy rules (decisions, conventions, techniques, cheating, level of play, etc.).
Read the page: Rules Troubleshooting