hi i have the brothers 1250d which is disney. it is not a cheap machine. i have been having problems with threading the machine when i am embroiderying. i have went through the manual am still trying to figure out what i am doing wrong. it is the take up arm. i am wondering if anyone else is having this problem. there a little tip of plastic that sits just on the left side of where the arrow starts going down. it is preventing the thread from going to the take up arm. then once i do get it threaded after aa short period of time then the thread comes unthreaded. not saying its a bad machine, its probably the operator lol. i love the machine otherwise. does a great job.i hope someone can walk me through this and tell me what the matter. i am on oxygen so its hard for me to always take to shop. any info would be greatly appreciated