Welcome,

I just started the trial of Visual Micro in order to test the debugger, and I have one problem. When I upload sketch in debug mode, the debugger works and displays data in "Micro debug trace" window.
The moment I click on the Expressions window (I also have Serial window open) the debug messages stop, and Serial window reports that it disconnected from the board.
From that point forward I cannot reconnect to the board unless I restart Visual Studio.
After restart I can continue to use debug (without recompiling and uploading sketch) but as soon as I switch to Expressions window, communication halts.

What am I doing wrong??
Also excuse me for anything I didn't do right (here on the forum), this is my first post.
I can post any additional information required.
Sketch is just simple debug test with one function in setup (pinMode) and automatic breakpoint on the loop function, nothing else.

I tried changing speeds of the debugger, but to no avail, it works as long as I don't open the Expressions window. Given that sometimes this window opens automatically, forces me to restart Visual Studio a lot

[edit] The behavior after connection break is identical to one mentioned in this topic, ie clicking on connect does nothing :/ http://www.visualmicro.com/forums/YaBB.pl?num=1408084173

Thanks for fast response, I appreciate it

Visual Studio Ultimate 2013 Update 3: version 12.0.30723.00
Arduino IDE 1.05

I use hardware COM port for communication:
Motherboard Gigabyte GA-P35-S3 rev 1.0, port is handled by Intel ICH9 controller. I use 9600 baud rate, 8 data bits, 1 stop bit, parity none, flow control disabled.
I also disabled FIFO buffers for send and receive but it didn't help.

Board is Atmega328p running at 8 MHz, programmed by USB ASP, connection to PC is done via MAX232 driver.

I use {} syntax, window opens every time, but the first time after Visual Studio restart and first compile-upload it opens not in focus (it is obscured by another window which is sharing the same place - specifically by the Serial window).
Next compile-upload forces window to appear in focus breaking connection. If I manually switch focus to expressions window after first compile-upload connection breaks. After that I always get "failed to open port" when trying to reconnect.

Sorry I didn't write back earlier I was busy with other things. Thanks for help in solving the issue. You were right, moving Expressions window so it doesn't obscure the Serial window fixed the issue.
The debugger is working fine now, thanks again

Here's the requested screen shot.

I'm sorry but I don't fully understand what do you want me to try. Could you clarify, or post some screenshot which would help me get the idea?