I cannot use the Desktop Software because I'm using a Proxy-Server, can you help me?
We're very sorry for the inconvenience. We're working on a rewrite of our Windows app which will address this issue. For now, please try to use the web-app at https://todoist.com instead.
do you have a schedule for this?
We do not have a schedule for this but we are working very hard to complete the rewrite of the app, and we hope to have it done as soon as possible.