I was able to fix the "infinite loop" condition associated with the CA VPDI entry in Box 14 of the W2 form. Initially, based on the input of other users, I tried to fix the problem by lowering the original entry by 1 cent but TurboTax continued to flag the CA VPDI as being above the CA limit of $1,209.09. However I noticed that the following entry in Box 14, labeled "RSU" in my W2, had been categorized by TurboTax as "CA VPDI tax". It was sufficient to reclassify the entry as "no entry" and the issue was solved.
