Jonathan Blondel's sublime volley gave us the lead at the City Ground but a misplaced pass in midfield handed Forest the chance to break away and grab an equaliser just before half-time.
Both teams passed and probed after the break but neither could find a winner - Blondel missed a golden chance while Jack Lester hit the crossbar for the home side with 10 minutes left.
"It was a very even game," reflected boss Colin. "They had the better of it in the first half but when we were having our best period we gave the ball away and they equalised.
"We scored an excellent goal from a set-piece that worked very nicely so it was disappointing to make a sloppy mistake in a position that was then punished.
"We've got to tidy those mistakes up and that is what we say to them now, they did okay but also made some bad decisions, some they got away with, that particular one they didn't."
Colin was pleased with Blondel's contribution and praised a young back four - that could all still play for our Academy Under-19s - after the unit lost Ronnie Henry, protection a very slight hamstring problem, at the last hour.
He added: "Jon looked very bright and could have scored another in the second half. It wa sa shame because he hustled their defence into a mistake but he and Sergei seemed to get mixed up.
"We contained them better in the second half and were inches away from a good ball into the box whereas in the first half, our percentage of passes in the danger areas was poor.
"Unfortunately, the goal has come from a poor mistake but it's something we got to iron out. Overall though, pleased with a point."
Colin Calderwood was pleased with a point from last night's reserve encounter at Forest but left to rue the mistake that cost all three.