error message: "Grbl has not finished booting" Using Universal G code sender

I am having issues using universal G code sender with Grbl.
My com. ports and bought rates matchup for the Arduino and the universal G code sender, universal G code sender says the connection is good.
When I try to type in G code and enter it I come up with the message error "Grbl has not finished booting"
I have deleted and re-downloaded both the G code sender and Arduino numerous times to no avail.
I used X loader to flash the Arduino with the Grbl software I have also repeated this numerous times to no avail.

I am using Arduino Uno latest version software,The current version of Grbl, Windows 7 professional, Xeon processor, Nvidia graphics card.
In the Arduino tools menu/programmer I am using "Arduino as ISP" the only other option I see that I think might be viable is"Arduino ISP".

FYI. I am new to Arduino and Grbl, I am well-versed in G code and would very much like to be able to use G code with my Arduino as opposed to learning another language.
Thank you, and any help would be very much appreciated.
David

Are you using the version that you compile yourself, of a hex version?

Using version 0.9i, I've not had this problem if I compiled Grbl myself and downloaded it to an Arduino, but I do have a cheap Chinese laser engraver that gives the same message.

I have not had time to dig into the laser engraver to see the issue, nor try the latest 1.1 release.

I am using version .9 of GRBL, I do think I have resolve my problem, after loading G RBL to the Arduino library I had failed to use upload to actually load the program this seems to have solved my problem. I am new at this and my problem was my ignorance. If this helps you any, good