The problem revealed when I need back up of my data. However i experienced with data loss in dropbox and could not recover.But as a manager i would not blame any programme i use it cause it may lead the employer to mischief this defect as a reason to corrupt. So i just keep silence and going to look for a way to sync data in Pc but outside dropbox (i put 2 data in one pc. One as backup and one again as main data used). I examined five or more alternative to dropbox, i tested and finnally uninstall them.
But i still stuck at one alternative which i think can works best with dropbox in its simplicity, safety, and fastness. I noticed after a litle examination that may wrong too or right, syncplity is working harmonizely with dropbox, that i never find my data crash or hanged like i experienced in Sugarsync when combinated with dropbox worked good at the beginning but slower and slower at the end hanged at all. (Sorry i mention it but this is secret, please do not tell anybody).
However this posting needs to be tested again and still debatable. I hope someone expert in this field can give some intructions or advises.