Three separate, instances I failed to receive coins from the pick-up window of the TP. The first time I was deleting 4-5 outstanding unfulfilled buy orders. The orders were removed upon clicking the “remove” button, but the refunded coins were not in the pick up window. I did my daily on another chr, and even rebooted my PC, but that did not stop the exact same thing from happening on another cancelled unfulfilled buy order a few hours later. The third such instance in the same evening was an item salvaged, resulting in a sup sigil of fire (approx 2g value). After a while I checked my sell orders to see it missing, and the sigil was in the “items ive sold” category, but the 1g99s99c was not in the pick up window. Coins are not getting in the pick up window, they are just dissapearing. I thank you for your assistance in advance and want to say…I STILL L~O~V~E THIS GAME! 
Proffits dissapearing from pick up window.
Thank you for your replies and suggestions.
@ Inculpatus – I only had 3 mails, but deleted them anyway. This unfortunately did not help.
@ Yamagawa – THIS WAS IT! I have never noticed this before.
It still seems odd but perhaps that is because the buy orders screen and most other screens show as “pages”, but the filled orders “pick-up” screen seems one continuous scroll down page. After accepting a few hundred buy orders, the missing gold started showing up a bit here and a bit there. Thank you both for your help!