Adobe Illustrator For Mac Os X 10.9.5 ##VERIFIED##

I just got this tablet and the pen doesn't work with adobe Photoshop. it works fine in illustrator but not photoshop. when I use the brush tool in photoshop the stylus pen just makes a singe dot and doesn't do continuous lines. I have a macbook pro running OS 10.10.5. I downloaded the most recent driver on the tablet's website. I have adobe photoshop CS5 V12.1. Any ideas/help would be great;y appreciated. the tablet company has not been very much help.

Adobe Illustrator For Mac Os X 10.9.5

I can Confirm a fix that worked on both a 10.9.5 & 10.11.6 Mac OS. Simply set the DST Root CA X3 to "Always Trust" on several Mac's I manage in an office and home's this fix work for 4 websites that previously had issues with this CERT ERR.