If you hover over the inline results, the total of the modifiers/penalties applied should equal the total skill modifier. If you would, post back using an Acrobatics check. Include your Dex and mod, and any other modifiers used on the Acrobatics row including the total listed for Acrobatics. Make a check/roll and post a screen cap of the inline results(hover text/tipsy) so I can see what has been applied. example: DEX: 10 (0), Armor Check Penalty(-4) Acrobatics: CS, +1 Rank, Trained (+3) Total=0 Some explanation of the hover text: look at the results after the equal sign. (13) is my roll, (1+ is my rank, (floor(...) is my Ability mod formula, +3 is for being trained, +0 is misc, (abs(...) is for ACP. Total modifier applied=0, same as the Acrobatics total. All seems to be in order.